EduSahara™ Worksheet

EduSahara™ Worksheet

Name : Chapter Based Worksheet

Chapter : Factors and Multiples

Grade : ICSE Grade VIII

License : Non Commercial Use

Question 1

1.

Find the number of prime factors of
75

(i)

1
(ii)

0
(iii)

3
(iv)

4
(v)

2

Question 2

2.

Which of the following numbers is divisible by 3?

(i)

1247
(ii)

1245
(iii)

1243
(iv)

1244
(v)

1246

Question 3

3.

Find the LCM of
{200,360}

(i)

1797
(ii)

1803
(iii)

1800
(iv)

1801
(v)

1799

Question 4

4.

Find the LCM of
{180,240,300,900}

(i)

3600
(ii)

3599
(iii)

3601
(iv)

3602
(v)

3597

Question 5

5.

Find the L.C.M of
9
16

,

14
15

,

16
6

(i)

1005
(ii)

1007
(iii)

1008
(iv)

1011
(v)

1009

Question 6

6.

Find the H.C.F of
6
9

,

38
21

,

40
22

(i)

1
694
(ii)

1
692
(iii)

0
(iv)

1
693
(v)

2
693

Question 7

7.

The factors of 44 =

(i)

{1,4,11,44,12,2}
(ii)

{1,2,4,11,22,44,21}
(iii)

{1,2,4,11,22}
(iv)

{1,2,4,11,22,44,3,21}
(v)

{1,2,4,11,22,44}

Question 8

8.

Find the HCF of
{400,280,190,320}

(i)

12
(ii)

10
(iii)

8
(iv)

11
(v)

9

Question 9

9.

Find the H.C.F of
15
8

,

8
4

,

4
14

(i)

1
54
(ii)

1
58
(iii)

(
-1
56
)
(iv)

1
56
(v)

3
56

Question 10

10.

Find the product of LCM and HCF of
{14,9}

(i)

128
(ii)

125
(iii)

126
(iv)

123
(v)

127

Question 11

11.

Find the smallest perfect square which is divisible by each of the numbers 4,8,18

(i)

288
(ii)

144
(iii)

577
(iv)

146

Question 12

12.

Find the HCF of
{440,560,1560}

(i)

40
(ii)

43
(iii)

41
(iv)

38
(v)

39

Question 13

13.

Find the HCF of
{45,22}

(i)

2
(ii)

(-2)
(iii)

0
(iv)

3
(v)

1

Question 14

14.

Find the product of LCM and HCF of
{20,18,8}

(i)

719
(ii)

718
(iii)

723
(iv)

720
(v)

721

Question 15

15.

Which of the following numbers is divisible by 6?

(i)

7837
(ii)

7838
(iii)

7836
(iv)

7834
(v)

7835

Question 16

16.

Find the prime factorization of
352

(i)

2 5

✕

11
(ii)

2 5

✕

9
(iii)

2 5

✕

11 2
(iv)

2 5

✕

10
(v)

4 5

✕

11

Question 17

17.

Find the prime factorization of
65

(i)

5 2

✕

13
(ii)

4

✕

13
(iii)

2

✕

13
(iv)

5

✕

13
(v)

5

✕

16

Question 18

18.

The common multiples of 3 and 7 =

(i)

{21,42,63,84,5}
(ii)

{42,63,84,105,260}
(iii)

{21,42,63,84,105}
(iv)

{21,42,63,105,28}
(v)

{21,42,63,84,76}

Question 19

19.

What is the number that divides
{6102,2332,5232}
leaving a remainder of
12

(i)

291
(ii)

289
(iii)

290
(iv)

288
(v)

293

Question 20

20.

Find the HCF of
{120,102}

(i)

6
(ii)

5
(iii)

3
(iv)

9
(v)

7

Question 21

21.

Find the number of prime factors of
10

(i)

3
(ii)

4
(iii)

0
(iv)

2
(v)

1

Question 22

22.

Find the HCF of
{2700,360}

(i)

182
(ii)

180
(iii)

179
(iv)

177
(v)

181

Question 23

23.

The multiples of 4 =

(i)

{4,8,16,20,24,13}
(ii)

{4,8,12,16,20,24,19}
(iii)

{4,8,12,16,20,24}
(iv)

{4,8,12,16,20,24,19,23}
(v)

{4,8,16,24,3,17}

Question 24

24.

Find the LCM of
{8,6}

(i)

26
(ii)

23
(iii)

24
(iv)

25
(v)

21

Question 25

25.

Find the LCM of
{15,8,18,12}

(i)

357
(ii)

359
(iii)

361
(iv)

362
(v)

360

Assignment Key